Persian is a language with several types of vowel harmony. This paper applies Optimality Theory (henceforth OT) to analyze this phonological process which includes various types of regressive and progressive vowel harmony in different words and expressions, as well as translaryngeal harmony and parasitism. It offers various examples whose trigger or target does not exist in the underlying representation and is therefore created in an intermediate representation. It discusses how backness harmony feeds height harmony in English loanwords. It also discusses blockers and exceptionality. The latter is analyzed using Pater's Lexically Specific Constraint Theory. It also addresses two cases of opacity in feeding and counterfeeding interactions. The main contribution of this paper is that it presents a set of empirical data on Persian vowel harmony and OT analyses which are of general theoretical interest.

中文翻译：

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波斯语元音和声

波斯语是一种具有多种元音和声的语言。本文应用最优理论（以下简称 OT）来分析这种语音过程，包括不同词和表达中的各种类型的倒退和进步元音和声，以及经喉和声和寄生。它提供了各种示例，其触发器或目标不存在于底层表示中，因此在中间表示中创建。它讨论了英语借词中的背景和谐如何促进高度和谐。它还讨论了阻滞剂和例外情况。后者使用 Pater 的词法特定约束理论进行分析。它还解决了喂食和反喂食交互中不透明的两种情况。